write labels

src/main/scala/com/htmlism/mos6502/dsl/Color.scala

@@ -5,9 +5,20 @@ import cats.data.NonEmptyList
 sealed trait Color
 
 object Color {
-  implicit val ev: Operand[Color] =
-    Operand.operandInt
-      .contra(toByte, _.toString)
+  implicit val colorOperand: Operand[Color] =
+    new Operand[Color] {
+      def toAddressLiteral(x: Color): String =
+        "#" + x.toString.toLowerCase()
+
+      def toShow(x: Color): String =
+        x.toString
+
+      def operandType: OperandType =
+        ValueLiteral
+
+      def toDefinitionLiteral(x: Color): String =
+        toByte(x).toString
+    }
 
   implicit val colorEnum: EnumAsm[Color] =
     new EnumAsm[Color] {

src/main/scala/com/htmlism/mos6502/dsl/Operand.scala

@@ -10,21 +10,6 @@ trait Operand[A] {
   def operandType: OperandType
 
   def toDefinitionLiteral(x: A): String
-
-  def contra[B](f: B => A, show: B => String): Operand[B] =
-    new Operand[B] {
-      val operandType: OperandType =
-        self.operandType
-
-      def toShow(x: B): String =
-        show(x)
-
-      def toDefinitionLiteral(x: B): String =
-        toAddressLiteral(x)
-
-      def toAddressLiteral(x: B): String =
-        self.toAddressLiteral(f(x))
-    }
 }
 
 object Operand {

src/test/scala/com/htmlism/mos6502/dsl/Easy6502Spec.scala

@@ -18,11 +18,11 @@ class Easy6502Spec extends AnyFlatSpec with should.Matchers {
       }
 
     doc.triplets shouldEqual List(
-      ("LDA", "#$01".some, "write White to screen (0)".some),
+      ("LDA", "#white".some, "write White to screen (0)".some),
       ("STA", "$0200".some, "".some),
-      ("LDA", "#$05".some, "write Green to screen (1)".some),
+      ("LDA", "#green".some, "write Green to screen (1)".some),
       ("STA", "$0201".some, "".some),
-      ("LDA", "#$08".some, "write Orange to screen (2)".some),
+      ("LDA", "#orange".some, "write Orange to screen (2)".some),
       ("STA", "$0202".some, "".some)
     )